Abstract
The application of synthetic auxins to entire trees of'Okitsu' Satsuma and 'Fortune' mandarins significantlyincreases fruit peduncle diameter. This effect is partially due to the increaseof fruit size promoted by the auxins, but is also due to a direct effect of thesynthetic auxins promoting the development of peduncle vascular tissues. Bothxylem and phloem development is affected by the auxins. This direct effect hasbeen shown by applying the auxins locally to the fruit or to the peduncle.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Agustí M., Almela V., Juan M., Primo-Millo E., Trenor I. and Zaragoza S. 1994. Effect of 3,5,6-tri-chloro-2-pyridyl-oxyacetic acid on fruit size and yield of 'Clausellina' mandarin (Citrus unshiu, Marc.). J. Hort. Sci. 69: 219-223.
Agustí M., Almela V., Zaragoza S., Primo-Millo E. and El-Otmani M. 1996. Recent findings on the mechanism of action of the synthetic auxins used to improve fruit size of Citrus. Proc. Int. Soc. Citriculture 2: 922-928.
Agustí M., El-Otmani M., Aznar M., Juan M. and Almela V. 1995. Effect of 3,5,6-trichloro-2-pyridyloxyacetic acid on 'Clementine' early fruitlet development and on fruit size at maturity. J. Hortic. Sci. 70: 955-962.
Agustí M., Zaragoza S., Iglesias D.J., Almela V., Primo-Millo E. and Talón M. 2002. The synthetic auxin 3,5,6-TPA stimulates carbohydrate accumulation and growth in Citrusfruit. Plant Growth Regul. 36: 141-147.
Aloni R. 1987. Differentiation of vascular tissues. Ann. Rev. Plant Physiol. 38: 179-204.
Aloni R. 1995. The induction of vascular tissues by auxin and cytokinin. In: Davies P.J. (ed.), Plant Hormones. Physiology, Biochemistry and Molecular Biology. Kluwer Academic Publishers, Dordrecht Boston London, pp. 531-546.
Aloni R. 2001. Foliar and axial aspects of vascular differentiation: hypotheses and evidence. J. Plant Growth Regul. 20: 22-34.
Aznar M., Almela V., Juan M., El-Otmani M. and Agustí M. 1995. Effect of synthetic auxin phenotiolon fruit development of 'Fortune' mandarin. J. Hort. Sci. 70: 617-621.
Bustan A., Erner Y. and Goldschmidt E.E. 1995. Interactions between developing Citrusfruits and their supportive vascular system. Ann. Bot. 76: 657-666.
El-Otmani M., Agustí M., Aznar M. and Almela V. 1993. Improving the size of 'Fortune' mandarin fruits by the auxin 2,4-DP. Scientia Hortic. 55: 283-290.
El-Otmani M., Coggins C.W. Jr, Agustí M. and Lovatt C. 2000. Plant growth regulators in citriculture: world current uses. Critical Reviews in Plant Sciences 19: 395-447.
El-Otmani M., Lovatt C.J., Coggins C.W. Jr and Agustí M. 1995. Plant growth regulators in citriculture: factors regulating endogenous levels in Citrus tissues. Crit. Rev. Plant Sci. 14: 367–412.
Erner Y. and Shomer I. 1996. Morphology and anatomy of stems and pedicels of spring flush shoots associated with Citrusfruit set. Ann. Bot. 77: 537-545.
Goldschmidt E.E. 1976. Endogenous growth substances of Citrustissues. HortScience 11: 95-99.
Goldschmidt E.E. and Koch K.E. 1996. Citrus. In: Zamski E. and Schafer A.A. (eds), Photoassimilate Distribution in Plants and Crops. Source-Sink Relationships. Marcel Dekker, Inc., New York, pp. 797-823.
Gray W., Östin A., Sandberg G., Romano C. and Estelle M. 1998. High temperature promotes auxin-mediated hypocotyl elongation in Arabidopsis. Proc. Natl. Acad. Sci. U.S.A. 95:7197-7202.
Guardiola J.L., Barrés M.T., Albert C.A. and García-Luis A. 1993. Effects of exogenous growth regulators on fruit development in Citrus unshiu. Ann. Bot. 71: 169-176.
Mehouachi J., Tadeo F.R., Zaragoza S., Primo-Millo E. and Talón M. 1996. Effects of gibberellic acid and paclobutrazol on growth and carbohydrate accumulation in shoots and roots of citrus rootstock seedlings. J. Hortic. Sci. 71: 747-754.
Patrick J.W. 1993. Sink strength: whole plant considerations. Plant Cell and Environment 16: 1019-1020.
Powell A.A. and Krezdon A.H. 1977. Influence of fruit-setting treatment on translocation of 14C-metabolites in citrus during flowering and fruiting. J. Amer. Soc. Hortic. Sci. 102: 709-714.
Pressman E., Tomer E., Cohen M., Rosenfeld K., Shaked R., Moshkovitz H. et al. 1998. Histological examination of low temperatures or TIBA-induced swelling of pepper ovaries. J. Plant Growth Regul. 25: 171-175.
Sachs T. 1991. The canalization of vascular differentiation. In: Sachs T. (ed.), Pattern Formation in Plant Tissues. Cambridge University Press, Cambridge, pp. 70-88.
Sachs T. 2000. Integrating cellular and organismic aspects of vascular differentiation. Plant Cell Physiol. 41: 649-656.
Stewart W.S., Hield H.Z. and Brannaman B.L. 1952. Effects of 2,4-D and related substances on fruit drop, yield, size and quality of Valencia oranges. Hilgardia 21: 301-329.
Takahashi N., Yamaguchi I., Kono T.M., Hirose K. and Suzuki K. 1975. Characterization of plant growth substances in Citrus unshiuand their change in fruit development. Plant Cell Physiol. 16: 1101-1111.
Wallerstein I., Goren R. and Monselise S.P. 1978. Rapid and slow translocation of 14C [carbon isotope]-sucrose and 14C-assimilates in Citrus and Phaseolus with special reference to ringing effect [Oranges, beans]. J. Hortic. Sci. 53: 203-208.
Wareing P.F. and Patrick J. 1976. Source sink relation and the partition of assimilates in the plant. In: Cooper J.P. (ed.), Photosynthesis and Productivity in Different Environments. Cambridge University Press, Cambridge, pp. 481-499.
Yang-Tao T., Davies P. and Reid J. 1996. Genetic dissection of the relative roles of auxin and gibberellin in the regulation of stem elongation in intact light-grown peas. Plant Physiol. 110: 1029-1034.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Mesejo, C., Martínez-Fuentes, A., Juan, M. et al. Vascular tissues development of citrus fruit peduncle is promoted by synthetic auxins. Plant Growth Regulation 39, 131–135 (2003). https://doi.org/10.1023/A:1022520618786
Issue Date:
DOI: https://doi.org/10.1023/A:1022520618786